| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.google.drive; |
| |
| import java.util.Collection; |
| |
| import com.google.api.client.auth.oauth2.Credential; |
| import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp; |
| import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver; |
| import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow; |
| import com.google.api.client.http.javanet.NetHttpTransport; |
| import com.google.api.client.json.jackson2.JacksonFactory; |
| import com.google.api.client.util.store.FileDataStoreFactory; |
| import com.google.api.services.drive.Drive; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class InteractiveGoogleDriveClientFactory implements GoogleDriveClientFactory { |
| private static final Logger LOG = LoggerFactory.getLogger(InteractiveGoogleDriveClientFactory.class); |
| private static final java.io.File DATA_STORE_DIR = new java.io.File(".google_drive"); |
| private NetHttpTransport transport; |
| private JacksonFactory jsonFactory; |
| private FileDataStoreFactory dataStoreFactory; |
| |
| public InteractiveGoogleDriveClientFactory() { |
| this.transport = new NetHttpTransport(); |
| this.jsonFactory = new JacksonFactory(); |
| } |
| |
| @Override |
| public Drive makeClient(String clientId, String clientSecret, Collection<String> scopes, String applicationName, String refreshToken, String accessToken) { |
| Credential credential; |
| try { |
| credential = authorize(clientId, clientSecret, scopes); |
| return new Drive.Builder(transport, jsonFactory, credential).setApplicationName(applicationName).build(); |
| } catch (Exception e) { |
| LOG.error("Could not create Google Drive client.", e); |
| } |
| return null; |
| } |
| |
| /** |
| * This method interactively creates the necessary authorization tokens on first run, |
| * and stores the tokens in the data store. Subsequent runs will no longer require interactivity |
| * as long as the credentials file is not removed. |
| */ |
| private Credential authorize(String clientId, String clientSecret, Collection<String> scopes) throws Exception { |
| dataStoreFactory = new FileDataStoreFactory(DATA_STORE_DIR); |
| // set up authorization code flow |
| GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(transport, jsonFactory, clientId, clientSecret, scopes) |
| .setDataStoreFactory(dataStoreFactory) |
| .setAccessType("offline") |
| .build(); |
| // authorize |
| return new AuthorizationCodeInstalledApp(flow, new LocalServerReceiver()).authorize("user"); |
| } |
| } |